METHOD, DEVICE AND CONTROL SYSTEM FOR INJECTING VEHICLE FUEL Russian patent published in 2018 - IPC F02D19/06 F02D41/30 

FIELD: motors and pumps.

SUBSTANCE: invention can be used in fuel management systems for internal combustion engines. Proposed method for controlling fuel injection of a vehicle engine includes: determining whether the engine is in a self-shutdown state (S101); if the engine self-shutdown is determined, the identification of the fuel used in the engine self-shutdown is determined (S102); if a combustible gas has been identified as the fuel used in engine self-shutdown, controlling the vehicle fuel injector to inject the liquid fuel during the first predetermined period after the engine self-shutdown (S103). Injection of liquid fuel allows for small drops of fuel to be sprayed and form an oil film on the wall of the cylinder and the throttle valve, acting as a lubricant on the next engine start. Also, a vehicle fuel injection control device and a vehicle fuel injection control system are proposed.

EFFECT: abrasion between the piston of the engine and the wall of the cylinder is reduced compared with that in the injection of combustible gas, so the service life of the engine is extended.

15 cl, 10 dwg